Merge pull request #40 from benlye/coverity-fixes

Coverity fixes

Author: benlye

.gitignore

@@ -331,6 +331,7 @@ ASALocalRun/
 
 # Coverity
 cov-int/
+cov-int.zip
 
 # nix stuff
 **/result

src/flash-multi/Dialogs/SerialMonitor.cs

@@ -70,30 +70,33 @@ public SerialMonitor(string serialPortName)
         /// <returns>A value indicating whether or not the port was successfully opened.</returns>
         public bool SerialConnect(string serialPortName)
         {
+            SerialPort serialPort = new SerialPort(serialPortName, 115200, Parity.None, 8, StopBits.One)
+            {
+                Handshake = Handshake.XOnXOff,
+                DtrEnable = true,
+                RtsEnable = true,
+            };
+
             try
             {
-                SerialPort serialPort = new SerialPort(serialPortName, 115200, Parity.None, 8, StopBits.One)
-                {
-                    Handshake = Handshake.XOnXOff,
-                    DtrEnable = true,
-                    RtsEnable = true,
-                };
                 serialPort.Open();
-
                 serialPort.DataReceived += new SerialDataReceivedEventHandler(this.SerialPortDataReceived);
 
                 this.SerialPort = serialPort;
-
                 this.buttonConnect.Enabled = false;
                 this.buttonDisconnect.Enabled = true;
-
                 this.Text = $"Flash Multi Serial Monitor - {serialPortName} (Connected)";
 
                 Debug.WriteLine($"Connected to {serialPortName}.");
                 return true;
             }
             catch (Exception ex)
             {
+                if (serialPort != null)
+                {
+                    serialPort.Dispose();
+                }
+
                 Debug.WriteLine($"Unable to open port:\n{ex.Message}");
                 using (new CenterWinDialog(this))
                 {

src/flash-multi/Dialogs/UsbSupportErrorDialog.cs

@@ -43,6 +43,7 @@ public UsbSupportErrorDialog()
         protected override void OnShown(EventArgs e)
         {
             this.errorIcon.Image = System.Drawing.SystemIcons.Error.ToBitmap();
+            base.OnShown(e);
         }
 
         /// <summary>

src/flash-multi/Dialogs/UsbSupportWarningDialog.cs

@@ -43,6 +43,7 @@ public UsbSupportWarningDialog()
         protected override void OnShown(EventArgs e)
         {
             this.warningIcon.Image = System.Drawing.SystemIcons.Warning.ToBitmap();
+            base.OnShown(e);
         }
 
         /// <summary>

src/flash-multi/Eeprom/Stm32EepromUtils.cs

@@ -210,7 +210,14 @@ internal static bool FirmwareIsEmpty(string filename)
         internal static bool EepromIsEmpty(string filename)
         {
             byte[] data = GetEepromDataFromBackup(filename);
-            return data.Distinct().Count() == 1 && data.Distinct().FirstOrDefault() == 255;
+            if (data != null)
+            {
+                return data.Distinct().Count() == 1 && data.Distinct().FirstOrDefault() == 255;
+            }
+            else
+            {
+                return true;
+            }
         }
     }
 }

src/flash-multi/FileUtils.cs

@@ -211,19 +211,16 @@ internal static bool CheckFirmwareFileSize(string filename)
                     case "AVR":
                         maxFileSize = fileDetails.BootloaderSupport ? (fileDetails.ModuleMcuFlashSizeKb * 1024) - 512 : fileDetails.ModuleMcuFlashSizeKb * 1024;
                         break;
-                    case "STM32":
+                    case "STM32F1":
                         maxFileSize = fileDetails.BootloaderSupport ? (fileDetails.ModuleMcuFlashSizeKb * 1024) - 8192 - 2048 : (fileDetails.ModuleMcuFlashSizeKb * 1024) - 2048;
-                        break;
-                }
-            }
 
-            // Check if the file contains EEPROM data if it is for an STM32
-            if (fileDetails.ModuleType == "STM32")
-            {
-                byte[] eePromData = Stm32EepromUtils.GetEepromDataFromBackup(filename);
-                if (eePromData != null && Stm32EepromUtils.FindValidPage(eePromData) >= 0)
-                {
-                    maxFileSize += 2048;
+                        byte[] eePromData = Stm32EepromUtils.GetEepromDataFromBackup(filename);
+                        if (eePromData != null && Stm32EepromUtils.FindValidPage(eePromData) >= 0)
+                        {
+                            maxFileSize += 2048;
+                        }
+
+                        break;
                 }
             }
 

src/flash-multi/FlashMulti.cs

@@ -115,7 +115,10 @@ public partial class FlashMulti : Form
         public FlashMulti()
         {
             // Set the language
-            Thread.CurrentThread.CurrentUICulture = new CultureInfo(this.language);
+            if (this.language != null)
+            {
+                Thread.CurrentThread.CurrentUICulture = new CultureInfo(this.language);
+            }
 
             // Initialize
             this.InitializeComponent();
@@ -1231,7 +1234,7 @@ private async Task ReadModule()
                 }
 
                 // Parse the EEPROM data
-                if (eepromData.Length > 0)
+                if (eepromData != null && eepromData.Length > 0)
                 {
                     uint globalId;
                     if (tempEepromFilename != string.Empty)
@@ -1489,6 +1492,7 @@ private async Task WriteModule()
                     // Error if the new bootloader hasn't been enabled
                     UsbSupportErrorDialog usbSupportErrorDialog = new UsbSupportErrorDialog();
                     usbSupportErrorDialog.ShowDialog();
+                    usbSupportErrorDialog.Dispose();
                     this.EnableControls(true);
                     return;
                 }
@@ -1502,9 +1506,12 @@ private async Task WriteModule()
 
                         if (warnResult != DialogResult.OK)
                         {
+                            usbSupportWarning.Dispose();
                             this.EnableControls(true);
                             return;
                         }
+
+                        usbSupportWarning.Dispose();
                     }
                 }
             }

src/flash-multi/Properties/AssemblyInfo.cs

@@ -51,5 +51,5 @@
 // You can specify all the values or you can default the Build and Revision Numbers
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("0.6.0")]
-[assembly: AssemblyFileVersion("0.6.0")]
+[assembly: AssemblyVersion("0.6.1")]
+[assembly: AssemblyFileVersion("0.6.1")]